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-rw-r--r--test/irb/command/test_show_source.rb397
1 files changed, 397 insertions, 0 deletions
diff --git a/test/irb/command/test_show_source.rb b/test/irb/command/test_show_source.rb
new file mode 100644
index 0000000000..d014c78fc4
--- /dev/null
+++ b/test/irb/command/test_show_source.rb
@@ -0,0 +1,397 @@
+# frozen_string_literal: false
+require 'irb'
+
+require_relative "../helper"
+
+module TestIRB
+ class ShowSourceTest < IntegrationTestCase
+ def setup
+ super
+
+ write_rc <<~'RUBY'
+ IRB.conf[:USE_PAGER] = false
+ RUBY
+ end
+
+ def test_show_source
+ write_ruby <<~'RUBY'
+ binding.irb
+ RUBY
+
+ out = run_ruby_file do
+ type "show_source IRB.conf"
+ type "exit"
+ end
+
+ assert_match(%r[/irb\/init\.rb], out)
+ end
+
+ def test_show_source_alias
+ write_ruby <<~'RUBY'
+ binding.irb
+ RUBY
+
+ out = run_ruby_file do
+ type "$ IRB.conf"
+ type "exit"
+ end
+
+ assert_match(%r[/irb\/init\.rb], out)
+ end
+
+ def test_show_source_with_missing_signature
+ write_ruby <<~'RUBY'
+ binding.irb
+ RUBY
+
+ out = run_ruby_file do
+ type "show_source foo"
+ type "exit"
+ end
+
+ assert_match(%r[Couldn't locate a definition for foo], out)
+ end
+
+ def test_show_source_with_missing_constant
+ write_ruby <<~'RUBY'
+ binding.irb
+ RUBY
+
+ out = run_ruby_file do
+ type "show_source Foo"
+ type "exit"
+ end
+
+ assert_match(%r[Couldn't locate a definition for Foo], out)
+ end
+
+ def test_show_source_string
+ write_ruby <<~'RUBY'
+ binding.irb
+ RUBY
+
+ out = run_ruby_file do
+ type "show_source 'IRB.conf'"
+ type "exit"
+ end
+
+ assert_match(%r[/irb\/init\.rb], out)
+ end
+
+ def test_show_source_method_s
+ write_ruby <<~RUBY
+ class Baz
+ def foo
+ end
+ end
+
+ class Bar < Baz
+ def foo
+ super
+ end
+ end
+
+ binding.irb
+ RUBY
+
+ out = run_ruby_file do
+ type "show_source Bar#foo -s"
+ type "exit"
+ end
+
+ assert_match(%r[#{@ruby_file.to_path}:2\s+def foo\r\n end\r\n], out)
+ end
+
+ def test_show_source_method_s_with_incorrect_signature
+ write_ruby <<~RUBY
+ class Baz
+ def foo
+ end
+ end
+
+ class Bar < Baz
+ def foo
+ super
+ end
+ end
+
+ binding.irb
+ RUBY
+
+ out = run_ruby_file do
+ type "show_source Bar#fooo -s"
+ type "exit"
+ end
+
+ assert_match(%r[Error: Couldn't locate a super definition for Bar#fooo], out)
+ end
+
+ def test_show_source_private_method
+ write_ruby <<~RUBY
+ class Bar
+ private def foo
+ end
+ end
+ binding.irb
+ RUBY
+
+ out = run_ruby_file do
+ type "show_source Bar#foo"
+ type "exit"
+ end
+
+ assert_match(%r[#{@ruby_file.to_path}:2\s+private def foo\r\n end\r\n], out)
+ end
+
+ def test_show_source_private_singleton_method
+ write_ruby <<~RUBY
+ class Bar
+ private def foo
+ end
+ end
+ binding.irb
+ RUBY
+
+ out = run_ruby_file do
+ type "bar = Bar.new"
+ type "show_source bar.foo"
+ type "exit"
+ end
+
+ assert_match(%r[#{@ruby_file.to_path}:2\s+private def foo\r\n end\r\n], out)
+ end
+
+ def test_show_source_method_multiple_s
+ write_ruby <<~RUBY
+ class Baz
+ def foo
+ end
+ end
+
+ class Bar < Baz
+ def foo
+ super
+ end
+ end
+
+ class Bob < Bar
+ def foo
+ super
+ end
+ end
+
+ binding.irb
+ RUBY
+
+ out = run_ruby_file do
+ type "show_source Bob#foo -ss"
+ type "exit"
+ end
+
+ assert_match(%r[#{@ruby_file.to_path}:2\s+def foo\r\n end\r\n], out)
+ end
+
+ def test_show_source_method_no_instance_method
+ write_ruby <<~RUBY
+ class Baz
+ end
+
+ class Bar < Baz
+ def foo
+ super
+ end
+ end
+
+ binding.irb
+ RUBY
+
+ out = run_ruby_file do
+ type "show_source Bar#foo -s"
+ type "exit"
+ end
+
+ assert_match(%r[Error: Couldn't locate a super definition for Bar#foo], out)
+ end
+
+ def test_show_source_method_exceeds_super_chain
+ write_ruby <<~RUBY
+ class Baz
+ def foo
+ end
+ end
+
+ class Bar < Baz
+ def foo
+ super
+ end
+ end
+
+ binding.irb
+ RUBY
+
+ out = run_ruby_file do
+ type "show_source Bar#foo -ss"
+ type "exit"
+ end
+
+ assert_match(%r[Error: Couldn't locate a super definition for Bar#foo], out)
+ end
+
+ def test_show_source_method_accidental_characters
+ write_ruby <<~'RUBY'
+ class Baz
+ def foo
+ end
+ end
+
+ class Bar < Baz
+ def foo
+ super
+ end
+ end
+
+ binding.irb
+ RUBY
+
+ out = run_ruby_file do
+ type "show_source Bar#foo -sddddd"
+ type "exit"
+ end
+
+ assert_match(%r[#{@ruby_file.to_path}:2\s+def foo\r\n end], out)
+ end
+
+ def test_show_source_receiver_super
+ write_ruby <<~RUBY
+ class Baz
+ def foo
+ end
+ end
+
+ class Bar < Baz
+ def foo
+ super
+ end
+ end
+
+ binding.irb
+ RUBY
+
+ out = run_ruby_file do
+ type "bar = Bar.new"
+ type "show_source bar.foo -s"
+ type "exit"
+ end
+
+ assert_match(%r[#{@ruby_file.to_path}:2\s+def foo\r\n end], out)
+ end
+
+ def test_show_source_with_double_colons
+ write_ruby <<~RUBY
+ class Foo
+ end
+
+ class Foo
+ class Bar
+ end
+ end
+
+ binding.irb
+ RUBY
+
+ out = run_ruby_file do
+ type "show_source ::Foo"
+ type "exit"
+ end
+
+ assert_match(%r[#{@ruby_file.to_path}:1\s+class Foo\r\nend], out)
+
+ out = run_ruby_file do
+ type "show_source ::Foo::Bar"
+ type "exit"
+ end
+
+ assert_match(%r[#{@ruby_file.to_path}:5\s+class Bar\r\n end], out)
+ end
+
+ def test_show_source_keep_script_lines
+ pend unless defined?(RubyVM.keep_script_lines)
+
+ write_ruby <<~RUBY
+ binding.irb
+ RUBY
+
+ out = run_ruby_file do
+ type "def foo; end"
+ type "show_source foo"
+ type "exit"
+ end
+
+ assert_match(%r[#{@ruby_file.to_path}\(irb\):1\s+def foo; end], out)
+ end
+
+ def test_show_source_unavailable_source
+ write_ruby <<~RUBY
+ binding.irb
+ RUBY
+
+ out = run_ruby_file do
+ type "RubyVM.keep_script_lines = false if defined?(RubyVM.keep_script_lines)"
+ type "def foo; end"
+ type "show_source foo"
+ type "exit"
+ end
+ assert_match(%r[#{@ruby_file.to_path}\(irb\):2\s+Source not available], out)
+ end
+
+ def test_show_source_shows_binary_source
+ write_ruby <<~RUBY
+ # io-console is an indirect dependency of irb
+ require "io/console"
+
+ binding.irb
+ RUBY
+
+ out = run_ruby_file do
+ # IO::ConsoleMode is defined in io-console gem's C extension
+ type "show_source IO::ConsoleMode"
+ type "exit"
+ end
+
+ # A safeguard to make sure the test subject is actually defined
+ refute_match(/NameError/, out)
+ assert_match(%r[Defined in binary file:.+io/console], out)
+ end
+
+ def test_show_source_with_constant_lookup
+ write_ruby <<~RUBY
+ X = 1
+ module M
+ Y = 1
+ Z = 2
+ end
+ class A
+ Z = 1
+ Array = 1
+ class B
+ include M
+ Object.new.instance_eval { binding.irb }
+ end
+ end
+ RUBY
+
+ out = run_ruby_file do
+ type "show_source X"
+ type "show_source Y"
+ type "show_source Z"
+ type "show_source Array"
+ type "exit"
+ end
+
+ assert_match(%r[#{@ruby_file.to_path}:1\s+X = 1], out)
+ assert_match(%r[#{@ruby_file.to_path}:3\s+Y = 1], out)
+ assert_match(%r[#{@ruby_file.to_path}:7\s+Z = 1], out)
+ assert_match(%r[#{@ruby_file.to_path}:8\s+Array = 1], out)
+ end
+ end
+end
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